themaninthejar - 1:39 pm on Mar 14, 2013 (gmt 0)
Average Position could derive from single DC for a single hour within that period
Not surprisingly I was assuming Google was using the widely accepted definition of "Average"...
What you describe should be be called "Highest position attained in period". And that begs the question if it's good enough to rank on page 1 for one hour, why is on page 47 for the remaining 23 hours...?